package com.cn.teachmobile.utils;import java.io.File;import java.io.FileOutputStream;import org.apache.tools.ant.Project;import org.apache.tools.ant.taskdefs.Expand;import de.innosystec.unrar.Archive;import de.innosystec.unrar.rarfile.FileHeader;/** * @author gongchaobin * * 解压缩zip rar文件 */public class ZipHelper {   /**    * 解压zip文件    *     * @param sourceZip 需要解压的文件路径    * @param destDir 解压存放的路径    * @throws Exception    */   private static void unzip(String sourceZip,String destDir) throws Exception{          try{              Project p = new Project();              Expand e = new Expand();              e.setProject(p);              e.setSrc(new File(sourceZip));              e.setOverwrite(false);              e.setDest(new File(destDir));              /*             ant下的zip工具默认压缩编码为UTF-8编码，                而winRAR软件压缩是用的windows默认的GBK或者GB2312编码                 所以解压缩时要制定编码格式             */             e.setEncoding("gbk");              e.execute();          }catch(Exception e){              throw e;          }      }      /**    * 解压rar文件    *     * @param sourceRar    * @param destDir    * @throws Exception    */   private static void unrar(String sourceRar,String destDir) throws Exception{          Archive a = null;          FileOutputStream fos = null;          try{              a = new Archive(new File(sourceRar));              FileHeader fh = a.nextFileHeader();              while(fh!=null){                  if(!fh.isDirectory()){                      //1 根据不同的操作系统拿到相应的 destDirName 和 destFileName                      String compressFileName = fh.getFileNameString().trim();                      String destFileName = "";                      String destDirName = "";                      compressFileName = new String(compressFileName.getBytes("UTF-8"),"GB2312");                   //非windows系统                      if(File.separator.equals("/")){                          destFileName = destDir + compressFileName.replaceAll("\\\\", "/");                          destDirName = destFileName.substring(0, destFileName.lastIndexOf("/"));                      //windows系统                       }else{                          destFileName = destDir + compressFileName.replaceAll("/", "\\\\");                          destDirName = destFileName.substring(0, destFileName.lastIndexOf("\\"));                      }                      //2创建文件夹                      File dir = new File(destDirName);                      if(!dir.exists()||!dir.isDirectory()){                          dir.mkdirs();                      }                      //3解压缩文件                      fos = new FileOutputStream(new File(destFileName));                      a.extractFile(fh, fos);                      fos.close();                   fos = null;               }                  fh = a.nextFileHeader();              }              a.close();              a = null;          }catch(Exception e){              throw e;          }finally{              if(fos!=null){                  try{fos.close();fos=null;}catch(Exception e){e.printStackTrace();}              }              if(a!=null){                  try{a.close();a=null;}catch(Exception e){e.printStackTrace();}              }          }      }   }

三个包的下载链接：